Mebrahtu Eyasu1, Workineh Shibeshi2 and Mirutse Giday3
1Saint Paul’s Hospital Millennium Medical College, Department of Pharmacology, P.O. BOX 1271 Addis Ababa Ethiopia.
2 Department of Pharmacology and Clinical Pharmacy, School of Pharmacy, College of Health Sciences, Addis
Ababa University. P.O. Box 1176 Addis Ababa Ethiopia.,
3Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Ethiopia.
